be quiet! Straight Power 12 1500W ATX vs Corsair RMX Series RM1000x
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AI Matrix
Powered by Claude AIbe quiet! Straight Power 12 1500W ATX and Corsair RMX Series RM1000x are closely matched power supplies devices with nearly identical overall scores (66 vs 64). The best choice depends on which specific features matter most to you.
Spec Comparison
be quiet! Straight Power 12 1500W ATXCorsair RMX Series RM1000x
Score Breakdown
be quiet! Straight Power 12 1500W ATXCorsair RMX Series RM1000x
92
Wattage35% weight
54be quiet! Straight Power 12 1500W ATX Winner
45
Price25% weight
71Corsair RMX Series RM1000x Winner
80
Noise Level15% weight
70be quiet! Straight Power 12 1500W ATX Winner
36
Warranty15% weight
82Corsair RMX Series RM1000x Winner
46
Fan Size10% weight
46Tie
Scores are relative within the power suppliescategory. Percentages show each dimension's weight in the overall score. A difference of less than 0.5 points is considered a tie.
be quiet! Straight Power 12 1500W ATX
✓ Pros
- ●Higher performance score
- ●Better design score
✗ Cons
- ●Higher price: $298.99 vs $179.99
- ●Higher price relative to value
- ●Weaker battery score
Corsair RMX Series RM1000x
✓ Pros
- ●Lower price: $179.99 vs $298.99
- ●Lighter build: 1800g vs 2200g
- ●Better battery score
✗ Cons
- ●Lower performance score
Spec Comparison
| Spec | be quiet! Straight Power 12 1500W ATX | Corsair RMX Series RM1000x |
|---|---|---|
| Price | 298.99$ | 179.99$✓ |
| Weight | 2200g | 1800g✓ |
| Dimensions | 150 x 86 x 160 mm | 150 x 86 x 160 mm |
| Colors | Black | Black |
Who Should Buy
Buy be quiet! Straight Power 12 1500W ATX if…
The be quiet! Straight Power 12 1500W ATX is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.
Buy Corsair RMX Series RM1000x if…
Choose the Corsair RMX Series RM1000x if budget is your top priority — it offers competitive specs at a lower price point.
be quiet! Straight Power 12 1500W ATX vs Corsair RMX Series RM1000x — FAQ
be quiet! Straight Power 12 1500W ATX vs Corsair RMX Series RM1000x: which is better?
be quiet! Straight Power 12 1500W ATX and Corsair RMX Series RM1000x are closely matched power supplies devices with nearly identical overall scores (66 vs 64). The best choice depends on which specific features matter most to you.
Is be quiet! Straight Power 12 1500W ATX better than Corsair RMX Series RM1000x?
Both products score similarly — it depends on your priorities.
Which is cheaper, be quiet! Straight Power 12 1500W ATX or Corsair RMX Series RM1000x?
Corsair RMX Series RM1000x is cheaper at $179.99 vs $298.99 for the be quiet! Straight Power 12 1500W ATX.
Who should buy the be quiet! Straight Power 12 1500W ATX?
The be quiet! Straight Power 12 1500W ATX is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.
Who should buy the Corsair RMX Series RM1000x?
Choose the Corsair RMX Series RM1000x if budget is your top priority — it offers competitive specs at a lower price point.
Which is lighter, be quiet! Straight Power 12 1500W ATX or Corsair RMX Series RM1000x?
Corsair RMX Series RM1000x is lighter at 1800g vs 2200g.
Related Comparisons
Full be quiet! Straight Power 12 1500W ATX review →Full Corsair RMX Series RM1000x review →All be quiet! Power Supplies →All Corsair Power Supplies →
Reviewed by VersusMatrix Editorial Team
Last updated: April 25, 2026
Methodology: AI-powered analysis of technical specifications from manufacturer data. Scores are calculated by comparing products across multiple dimensions and normalized relative to the full category database. Our editorial process is independent and not influenced by affiliate partnerships.